Determination of diffusion coefficients from experimental moisture concentration profiles in clay

A.A.J. Ketelaars; O. Lauf; W.J. Coumans; P.J.A.M. Kerkhof

Determination of diffusion coefficients from experimental moisture concentration profiles in clay

A.A.J. Ketelaars, O. Lauf, W.J. Coumans, P.J.A.M. Kerkhof

Chemical Reactor Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Abstract

In order to measure moisture-concn. profiles, a method based on neutron transmission was applied. Drying curves and diffusion coeffs. were calcd. from these profiles. The diffusion coeffs. appeared to be similar to the diffusion coeffs. detd. by comparing the numerical soln. of the diffusion equation with exptl. drying curves. The accuracy of both methods is about the same. Because the moisture concn. profiles are flat at high moisture concns., the accuracy of the calcd. diffusion coeffs. at high moisture concns. is not as high as is obtained at lower moisture concns. The neutron-transmission-based method is reproducible and has the advantage that it is not necessary to assume a certain relation between the diffusion coeff. and the moisture content. [on SciFinder (R)]

Original language	English
Title of host publication	Drying '92 : Proceedings of the 8th International Drying Symposium (IDS '92), Montreal, Quebec, Canada
Place of Publication	Amsterdam
Publisher	Elsevier
Pages	345-352
ISBN (Print)	0-444-89393-8
Publication status	Published - 1992
Event	8th International Drying Symposium (IDS '92), August 2-5,1992, Montreal, Quebec, Canada - Montreal, Canada Duration: 2 Aug 1992 → 5 Aug 1992

Conference

Conference	8th International Drying Symposium (IDS '92), August 2-5,1992, Montreal, Quebec, Canada
Country	Canada
City	Montreal
Period	2/08/92 → 5/08/92
Other	8th International Drying Symposium (IDS '92)Montreal, Quebec, Canada, August 2-5,1992

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@inproceedings{dd15b546b41440fa91606981e152327f,

title = "Determination of diffusion coefficients from experimental moisture concentration profiles in clay",

abstract = "In order to measure moisture-concn. profiles, a method based on neutron transmission was applied. Drying curves and diffusion coeffs. were calcd. from these profiles. The diffusion coeffs. appeared to be similar to the diffusion coeffs. detd. by comparing the numerical soln. of the diffusion equation with exptl. drying curves. The accuracy of both methods is about the same. Because the moisture concn. profiles are flat at high moisture concns., the accuracy of the calcd. diffusion coeffs. at high moisture concns. is not as high as is obtained at lower moisture concns. The neutron-transmission-based method is reproducible and has the advantage that it is not necessary to assume a certain relation between the diffusion coeff. and the moisture content. [on SciFinder (R)]",

author = "A.A.J. Ketelaars and O. Lauf and W.J. Coumans and P.J.A.M. Kerkhof",

year = "1992",

language = "English",

isbn = "0-444-89393-8",

pages = "345--352",

booktitle = "Drying '92 : Proceedings of the 8th International Drying Symposium (IDS '92), Montreal, Quebec, Canada",

publisher = "Elsevier",

address = "Netherlands",

note = "8th International Drying Symposium (IDS '92), August 2-5,1992, Montreal, Quebec, Canada ; Conference date: 02-08-1992 Through 05-08-1992",

}

Ketelaars, AAJ, Lauf, O, Coumans, WJ & Kerkhof, PJAM 1992, Determination of diffusion coefficients from experimental moisture concentration profiles in clay. in Drying '92 : Proceedings of the 8th International Drying Symposium (IDS '92), Montreal, Quebec, Canada. Elsevier, Amsterdam, pp. 345-352, 8th International Drying Symposium (IDS '92), August 2-5,1992, Montreal, Quebec, Canada, Montreal, Canada, 2/08/92.

Determination of diffusion coefficients from experimental moisture concentration profiles in clay. / Ketelaars, A.A.J.; Lauf, O.; Coumans, W.J.; Kerkhof, P.J.A.M.

Drying '92 : Proceedings of the 8th International Drying Symposium (IDS '92), Montreal, Quebec, Canada. Amsterdam : Elsevier, 1992. p. 345-352.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Determination of diffusion coefficients from experimental moisture concentration profiles in clay

AU - Ketelaars, A.A.J.

AU - Lauf, O.

AU - Coumans, W.J.

AU - Kerkhof, P.J.A.M.

PY - 1992

Y1 - 1992

N2 - In order to measure moisture-concn. profiles, a method based on neutron transmission was applied. Drying curves and diffusion coeffs. were calcd. from these profiles. The diffusion coeffs. appeared to be similar to the diffusion coeffs. detd. by comparing the numerical soln. of the diffusion equation with exptl. drying curves. The accuracy of both methods is about the same. Because the moisture concn. profiles are flat at high moisture concns., the accuracy of the calcd. diffusion coeffs. at high moisture concns. is not as high as is obtained at lower moisture concns. The neutron-transmission-based method is reproducible and has the advantage that it is not necessary to assume a certain relation between the diffusion coeff. and the moisture content. [on SciFinder (R)]

AB - In order to measure moisture-concn. profiles, a method based on neutron transmission was applied. Drying curves and diffusion coeffs. were calcd. from these profiles. The diffusion coeffs. appeared to be similar to the diffusion coeffs. detd. by comparing the numerical soln. of the diffusion equation with exptl. drying curves. The accuracy of both methods is about the same. Because the moisture concn. profiles are flat at high moisture concns., the accuracy of the calcd. diffusion coeffs. at high moisture concns. is not as high as is obtained at lower moisture concns. The neutron-transmission-based method is reproducible and has the advantage that it is not necessary to assume a certain relation between the diffusion coeff. and the moisture content. [on SciFinder (R)]

M3 - Conference contribution

SN - 0-444-89393-8

SP - 345

EP - 352

BT - Drying '92 : Proceedings of the 8th International Drying Symposium (IDS '92), Montreal, Quebec, Canada

PB - Elsevier

CY - Amsterdam

T2 - 8th International Drying Symposium (IDS '92), August 2-5,1992, Montreal, Quebec, Canada

Y2 - 2 August 1992 through 5 August 1992

ER -